update pyodide to 0.21.0 release version (#226)

https://github.com/pyodide/pyodide/releases/tag/0.21.0

Author: messense

package.json

@@ -8,7 +8,7 @@
   "main": "tests/emscripten_runner.js",
   "dependencies": {
     "prettier": "^2.7.1",
-    "pyodide": "^0.21.0-alpha.2"
+    "pyodide": "^0.21.0"
   },
   "scripts": {
     "test": "node tests/emscripten_runner.js",

wasm-preview/worker.js

@@ -81,7 +81,7 @@ self.onmessage = async ({data}) => {
       get(`./run_tests.py?v=${Date.now()}`, 'text'),
       // e4cf2e2 commit matches the pydantic-core wheel being used, so tests should pass
       get(zip_url, 'blob'),
-      importScripts('https://cdn.jsdelivr.net/pyodide/v0.21.0a3/full/pyodide.js'),
+      importScripts('https://cdn.jsdelivr.net/pyodide/v0.21.0/full/pyodide.js'),
     ]);
 
     const pyodide = await loadPyodide();